Quenched results on $B$ Mesons with NRQCD

Preliminary results on spectrum and decay constant of $B$ mesons from a quenched simulation at $\beta =6.0$ on an ${16}^3\times 48$ lattice are discussed. The heavy quark has been implemented using both an NRQCD and the static formulation, the light one with a clover improved Wilson formulation. Both the NRQCD Hamiltonian and the heavy-light current consistently include terms of $O(1\mathrm{/}{M}_Q)$, the inverse heavy quark mass.